Museum Collection
This specimen is part of the museum collection catalog.
Not for Sale.
Obsidian
Santa Rosa, California, USA
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| Classification |
Igneous Rock |
| Tags |
No special tags. |
| Origin Location |
Santa Rosa, California, USA |
| Description |
Black Chunks of Volcanic Glass |
| Luster |
Vitreous |
| Luster (Groundmass) |
Not noted, see photo. |
| Optical Phenomena |
Not noted, see photo. |
| Mineral Group / Note |
Rhyolitic Volcanic Glass |
| Handling |
No special handling is required. |
| Modifications |
No modifications. |
| Size Group |
Miniature |
| Weight |
Not weighed precisely yet, please inquire. |
| Dimensions |
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| Quantity |
1 Specimen |
| Mineral List |
* Formula chemical names are auto-generated - may be incorrect on complex formulas.
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Specimen Analysis |
Color Table
Colors found in this specimen image are shown below. Higher number indicates greater concentration of that color.
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Similarly Colored Minerals:
Minerals with similar color profiles are shown below.
How it Works
Corvusite Fluorite / Quartz Goethite Cuprite Pyrite (Large Cube) Acanthite/Polybasite |
Elements in this Specimen:
Elements that are part of the official chemical structure of the minerals occurring in this specimen are indicated below.
How it Works
Element List:
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Minerals with Similar Chemistry:
Minerals that are similar in terms of their chemical makeup are shown below.
How it Works
This Mineral Formula Similar Mineral Formula
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Mineral Group:
Search the catalog for minerals that share the same group as this specimen:
How it Works
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| Tools |
Edit Specimen
Search Wikipedia: Obsidian (Wiki)
Search Mindat: Obsidian
Search Web Mineral DB: Obsidian
Search for Handbook of Mineralogy: Obsidian
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